ADVBIO Genetics Quiz
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Cross two homozygous plants
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
A. 0%
B. 25%
C. 50%
D. 100%
Which describes why the twins shown are not exactly alike?
A. Mutations occured to change traits
B. Epigenetic changes were caused by environmental factors
C. The twins have different DNA
D. The twins are identical.
What percentage will be tall offspring if B=tall and b=short?
A. 0%
B. 25%
C. 50%
D. 100%
If their offspring is pink, and the parents are red and white, which pattern of inheritance does this represent?
A. sex-linked inheritance
B. simple dominance
C. co-dominance
D. incomplete dominance
In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?
a. Tall = T
Short = S
b. Tall = T
Short = t
c. Tall = t
Short = T
d. Tall = TT
Short = tt
organism heterozygous for a specific trait
A. recessive
B. purebred
C. hybrid
D. dominant
How many daughter cells are produced from meiosis ?
A. 10
B. 6
C. 4
D. 2
Normal humans have 46 chromosomes in their somatic cells. How many chromosomes do the gametes have?
A. 46
B. 23
C. 12
D. 92
What you see, or the physical appearance.
A. Genotype
B. Phenotype
C. Homozygous
D. Heterozygous
What percentage of the offspring will have recessive homozygous genotypes?
A. 0%
B. 25%
C. 50%
D. 100%
Which is the correct phenotypic % for the following Punnett square if T=tall and t=short
A. 100% tall
B. 100% short
C. 50% tall, 50% short
D. 75% tall, 25% short
A white mouse with red eyes is crossed with a black mouse with brown eyes. The white mouse is recessive for both of its traits. The black mouse is dominant for both of its traits.
This cross would be
_
A. BBEE x bbee
B. BBEe x BbEe
C. BbEE x BbEe
D. BBee x BBEE
A heterozygous individual would have a genotype of
A. AA
B. Aa
C. XhXh
D. AABB
Dominant alleles are represented by a:
A. Male gene
B. lowercase letter
C. recessive trait
D. capital letter
A homozygous individual would have a genotype of
A. gray
B. RW
C. AA
D. Aa